*{ margin: 0; padding: 0; box-sizing: border-box; } .page-header{ display: flex; justify-content: center; padding: 28px 0; background-color: #000 ; } .header-logo{ display: block; } .main-banner-desktop{ width:100% } @media screen and(max-width:414px) { .main-banner-desktop{ display: none; } } @media screen and(min-width:415px){ .main-banner-mobile{ display: none; } }